diehl



F. DIEHL. I GLUE MACHINE. APPLICATION FILED FEB. 27, I917- 3 SHETSSHEET1.

Patented Sept. 30,

0 5 322 a f w 2 T .1 4 ,1 a Wm n 2 "H /J0 W 0 w P 4 w m M 4 W V alwueutoz attozwug I F. DIEHL.

GLUE MACHINE.

APPLICATION HLED FEB.27. 1911.

1,317,620. i Patented Sept. 30, 1919.

3 $HEETS-S HEET Z- WWZ F. DIEHL.

GLUE MACHINE.

APPLICATION FILED FEBZI. l9l7.

1,317,620. Patented Sept. 30,1919.

3 SHEETS-SHEET 3- FRANK DIECE-IL, :Q'F WA'BASH, INDIANA.

GLUE-MACHINE.

To all whom it may concern:

Be it known that I, FRANK DIEHL, a citizen of the United States,residing at abash, in the county of WVabash and State of Indiana, haveinvented a new and useful Glue-Machine, of which the -following is aspecification.

The device forming .the subject matter of this application is adapted tobe employed for "heating and spreading glue, and one object of theinvention is to provide novel means whereby a water seal for the lids ofthe glue pots is afforded, the water of condensation forming the waterseal, and excess water being returned to the glue pots.

Another object of the invention is to pro-- vide novel means whereby the:glue is auto-- matically fed from the glue .pot torthe glue spreader;

A further objectlof the invention 'is to improve 'thespreader.

Another object ofthev invention is to provide novel means whereby coldwater may he'supplied to. the jackets of the glue pots, when the gluepots are filled, and .to-provide novel :means whereby this cold watercan be drawn away, at the :will of an operator.

I t is within the province 1 of the. disclosure to improve generally andto enhance the utilityof devices-of that type to which the presentinvention appertains. M

With the above and other objects in view which will appear :as thedescription proceeds, the invention resides :in th combination and.arrangement of parts and in the details of construction hereinafter.described and claimed, it being understood that.

. present-invention, parts: being; broken way Fig. .2 :is a verticaltransverse section taken through the: glue spreader, parts :ap-

pearingzin elevation;

Fig. 3 is an elevation wherein thestruc+ ture is viewed :at rightangles"to'theishowing.o:E*Fig. 1; 7 )l I Fig. 4 is' a vertical seotiontaken through onerofthe casings andthe glue pot-which is assembledtherewith;and' Fig; 5 is aitopaplan showing a. glue ma- Specification ofLetters Patent.

Patented Sept. 39, 1919..

Application filedFebr-ua-ry 27,1917. Serial No. 151,259.

chine constructed in accordance with the present invention.

In carrying out the present invention there are provided casings 1supported on a pedestal 2. Each casing 1 adjacent its upper end issupplied with an inwardly projecting circumscribing lip 3 as shown bestin Fig. 4. Disposed within each casing 1 is a glue pot 4 having anoutwardly pro-- jecting flange 5 supported on the lip of thecasing 1,the flange 5 having-a shoulder 6'-which, coacting with the inner edge ofthe lip 3 holds the glue pot 4 concentric with the casing 1 thereby todefine, between the glue pot and the easing,'a jacket 43. In theupper-edge of each glue pot 4 is formeda continuous circumscribinggroove 7, the

outer wall 8 or which is higher than theinner wall 9 thereof. The gluepots 4 are provided with lids 10, each havinga flange 11 extendeddownwardly into the groove 7 Lugs 12 are carried by the flange i3,- andlevers 14 are fulcrumed at '15 onthe i'liu'gs, the levers being pivotedat 16, intermedia e their ends, to ears '17 upstanding "from the lids10. The upper ends of springs 18 are connected with the outerendsof thelevers 14, the lower ends of the springs :b-eing unitedwith offsetbrackets 19 attached ,to the outer faces of the'casings 1. v Theinvention comprises a spreader denoted generally'by the numeral 20;and.including an outer casing 22 supported on a pedestal 21. Disposedwithin the outer casing 22, as shown hestin Fig. 2, is an inner tank 23,equipped with a flange 24 supportedon a flange 25 constituting apart ofthe outer casing'22, there being acket 26' betweenthe inner tank 2313,116. the outer casing-22 Inits side wall, the -inner.tan-k 23 isprovided with an opening 27,'about which extends a hood 28 which maybeformed integrally with or'connected; to the said side wall of the-innertank. i'l heside Wallof the outer casing 22:0fthespreader isprovidedxwith an opening 29 coaxial with the opening 27,-butof aglargersizethan-the opening 27.

Bearings 30 areinountedon the fiange24- of the inner tank 23,.and"inithe'bearings'30 are jzournaled shafts 31 carryinganapplying roller32 and aspreading andrernoving roller- 32?, extended downwardly into theinner tank23 of the spreader. The shafts 3 1 carry intermeshing gearwheels '33, oneof the gear wheels33 meshing into a pinion 34 fixed to adrive shaft journaled in a 1 hanger 36 carried by the outer casing 22.Any suitable means may be provided for' rotating the shaft 35, a pulley37 and a belt 38 being shown in the present instance.

Mounted on the flange 24 of the inner tank 23 and disposed on oppositesides of the bearings 30 are brackets 39 to which up standing arm 40 arepivoted as shown at 41.1 Screws 42 are carried byv the brackets 39 andpass loosely throughthe arms 40.- Springs :43 surround the screws 42,the inner ends of the springs 43 abutting against the arms 40, and theouter ends of the springs abutting against hand wheels 44 which arethreaded "onto the screws 42. Shafts 69 arejournaled in the arms 40, oneof the shafts 69 carrying a doctor roller 45 driven byv contact with theroller 32, and the other of the shafts 69 carrying a wiping roller 45driven by contact with the roller 32*. v y

The numeral 46- denotes cold water pipeswhich' commu 'iicateas shown at47 withthe jackets48 between the glue pots 4 and the casings 1.Interposed in the pipes 46 are' handvalves 49. Each. pipe 46 -has an up,wardly prolonged ,branch'50 extended as shown at 51into the. jacket 48and terminating in anfexposed cock =52located.extcriorly; of thecasing 1. Leading from the parts 47' ofthe cold water intake pipes aredrainage branches 53 'in which are interposed hand valves 54. -Thedrainage branches 53 communicate with drain pipes 55 which are up wardlyand laterallyextended as shown 56, the part's56 of the pipe 55,communicating with ithe jackets '48 between the .glue

pots 4and the casings 1.

The numeral 57 marks a steamfsupply pipe which is prolonged horizontallyas shown at 58 infront of'the casings 1, the

part 58 of the steam pipe having depending branches- 59avl1icl1communicate with the jackets 48. .I'nterpo'sed in the branches 59 ofthesteam pipe are valves 60, and condensers '61 are "also interposed in thebranches 59! The steam pipe 57 has'a branch 62 carrying a hand valve 63.The branch 62opens through the outer tank23 of the spreader andcommunicates with the jacket 26; A pipe 200 leads from the jacket26 toone of the drain pipes Glueconveying pipes 64 are provided, the samepassing through the jackets 48 and communicating with theglue pots 4 asshown in Fig. 4. These glue pipes 64 are 1 equipped with hand valves 65.The lower ends of the pipes 64 merge into api pe 640 whichv enters theopening 27 in the inner tank 20 of the spreader, asshownin- Fig.2,

' the discharge end of the glue pipe 640 open ing within the contour ofthe hood 28. The pipe 640 is surrounded, adjacent the spreader 20, by atubular jacket 66, the inner end of 'which is mounted in the opening 29of the outer casing 22 of the spreader. The outer end ofthe jacket 66 isconnected with the pipes 640 adjacent the spreader 20 suming that thejackets 48 are empty of hotv water, the valve 49 are opened, and thevalves 54 are closed. Cold water then passes by way of the pipes 46 andtheir-branches 47 into the jackets 48 and accumulates therein until thejackets are substantially full, the

excess cold Water passing away throughthe pipes 56 into the drain pipes55' The glue is then mixed properly in the cold glue pots 4, and if thevalves 49 are closed, the valves 54 being opened, the cold water in thejack: ets 48 willflow by. way of the pipes 47 and 53 into the drainpipes The valves 54 then are closed, and the apparatus is insuch acondition that the glue can be heated up.

In order to heat the glue, the valves 60 are opened, and thensteamtraverses the pipe 57, the pipe 58yand lts branches 59. The steam,-passing through the condensers 61, is turned into hot. waiter'whichenters the jackets 48, the temperature of the Water in the jackets 48being determined by thermometers68carried on the exterior oiithe casings1., The overfiowliot Water in the jackets 48 passes by way' of the.pipes .56

into the drain pipes 55. The temperature of the water in the jackets 48may be regulated a Y by opening the valves 49, so as to admit a supplyofcold water'from the pipes 46 into the jackets by way of the pipes 47.

The valves 65 areset to permit the desired flow of glue from the gluepots 4 through the pipes .64 and 640' into the inner tanks 23 of theglue spreaders 20. The glue pots 4 are hermetically sealed byj the lids1 0, and

consequently, the glue will flow through the lower ends of the pipes 64'and 640 into the inner tank 23 of thespreader, only when the glue in theinner tank 231mg been depleted enough'so that air can enterthe pipe 640through the hood 28. This operation takes place automatically, toinaintaiin'practical1y, a constant level of glue in the inner tank 23'ofthe spreader, and after the valve 65 have been set, they needbem-aniplated only for the purpose of regulating the amount of gluedelivered. i V

- The steam within the glue pots 4 accumulates on the lids 10 and runsdownwardly and outwardly along. the underfsurfaces of the lids,acrossthe upper edge ofthe'relatively low inner wall 9, into the-grooves7.-

When this water of condensation haSae-f cumulated sufficiently in thegrooves 7 the water flows over the upper edge of the wall 9, and passesback into the glue pot 4. The flanges 11 on the lids 10 dip into thewater seal in the grooves 7 and thus the glue pots are sealedhermetically. The springs 18, react on the levers 14, to hold the lids10 down on the glue pots 4, it being possible to detach the upper endsof the springs from the levers 1 1, or to detach the lower ends of thesprings from the brackets 19 when it is desired to swing the lids 10 toopen positions, as takes place when the supply of glue in the pots 1 isto be renewed.

The branch 50 and its extension 51, together with the cook 52,constitute a means whereby a supply of. hot water may be secured at anytime. These parts have nothing to do with the operation of the machine,so far as the melting or manipulation of the glue is concerned.

WV'hen the drive shaft 35 is rotated by means of the pulley 37 and thebelt 38 or their mechanical equivalents, the pinion 34 on the driveshaft 35, meshing into one of the gear wheels 33, drives said gearwheel, and the said gear Wheel drives the other gear wheel, the shafts31 being rotated, and the applying roller 32 and the spreading andremoving roller 32 being rotated in the direction of the arrows inFig. 1. A board or like object, which is to be glued, is pushed acrossthe tops of the rollers 32 and 32*,

in the direction of the arrow A of Fig. 1.

The roller 32: applies the glue to the board and the roller 32 whichrotates in an opposite direction to the roller 32, spreads the glueevenly over the board, and takes off the excess glue. By rotating thehand wheels tt, the pressure of the roller 45 on the roller 32, and thepressure of the roller 45 on the roller 32 may be adjusted, the roller45 bearing on the roller 32 with a stronger pressure than that exertedby the roller 45 on the roller 32. The roller 45 therefore, wipes offthe excess glue on the roller 32 the roller 32 being, essentially, aglue spreading roller, whereas the roller 32 is a glue applying roller.

Steam from the pipe-62 is delivered into the jacket 26 of the spreaderfor heating purposes. The steam leaves the jacket 26 by thebranch 201,the pipe 200 and one Copies of this patent may be obtained for fivecents each, by addressing the Commissioner of Patents,

pipe 55. This secures a heating of the glue as it is being deliveredthrough the pipe 640.

to the spreader. Because the pipe 200 opens at one end into the jacket26 of the spreader in spaced relation to the branch 201 which connectsto the part66, there is a through circulation of steam in the jacket 26of the spreader, and all of the steam does not make a short-cut tothepipe 200 by the branch 201.

Having thus described the invention, what is claimed is 1. In a deviceof the class described, a glue pot; a spreader including an outer casingand an inner tank defining a space between the casing and the tank, thecasing having a sidewall, and the tank having a side wall and a bottom;means for heating the contents of said space; a glue pipe leading fromthe pot to the tank and extended across said space and ithrough bothside walls; a tubular jacket surrounding a portion of the glue pipeexterior to the casing and having one end mounted in the side wall ofthe tank and in communication with said space; means for closing theouter end of the jacket about the pipe; and an arched hood carried bythe side wall and the bottom I in the hood.

2. In a device of the class described, a glue pot having a jacket; aspreader having a jacket; a glue pipe leading from the pot to thespreader; a jacket about the glue pipe and communicating with the jacketof the spreader; means for supplying steam to the jacket of thespreader; means for supplying steam to the jacket of the glue pot; meansfor supplying cold water to the acket of the glue pot; a drain pipeleading from the jacket of the glue pot; and a steam outlet pipe leadingfrom the jacket of the spreader to the drain pipe and having a branchcommunicating with the jacket of the glue pipe.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

FRANK DIEHL.

'Witnesses:

D. G. MARRER, A. D.. BRANNIN.

Washington, D. 0."

